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Home » Active Ingredients » Cypermethrin


Cypermethrin is a synthetic pyrethroid—which means that it remains effective for longer periods of time.

Cypermethrin belongs to a class of insecticides known as synthetic pyrethroids, found in Cynoff EC, Cynoff WP, Cyper TC Termiticide, Cyper WP, and Demon WP pesticide concentrates. Synthetic pyrethroids are man-made insecticides created to mimic the chemical properties of the naturally-occurring insecticide pyrethrum, which comes from the crushed petals of the Chrysanthemum flower. Synthetic pyrethroids, like cypermethrin, are often preferred to the real thing as active ingredients because they offer the added bonus of remaining effective for longer periods of time.

Cypermethrin is among the most popular insecticide concentrates used to target common household pests.

Cypermethrin is commonly used as a crack and crevice or spot treatment for residual and contact control of spiders, ants, carpenter ants, scorpions, German cockroaches, ladybugs, carpenter bees, and yellow jackets. At we have a wide variety of do it yourself pest control products containing Cypermethrin in liquid and powder concentrates:

Cypermethrin Products

Items 1 - 19 (of 19 Total)   Sort By:
Demon WP Insecticide
4.50 out of 5 stars (647)
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For crack and crevice and/or spot applications for residual and contact control of many insect pests.

Cyper WP
4.50 out of 5 stars (257)
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The generic of Cynoff WP and Demon WP. Get the same pesticide for less!

Talstar XTRA Granules - 25 lb. bag
4.50 out of 5 stars (27)
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Talstar XTRA featuring Verge granular insecticide is labeled for use against most ants (including fire ants) as well as chinch bugs, fleas, ticks, mole crickets, crane flies and many other lawn pests.

Demon Max
5 out of 5 stars (46)
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Residual pest control with dual action to control and repel over 30 types of pests including ants, cockroaches, fleas, ticks and termites.

Cyper TC
5 out of 5 stars (15)
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Cypermethrin based product that acts as a repellant termiticide to control subterranean termite infestations. 5 Year Residual.

Cynoff EC
4.50 out of 5 stars (22)
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Cynoff EC liquid insecticide concentrate with cypermethrin

Stink Bug Control Kit
4.50 out of 5 stars (26)
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Protect your home from insects that tend to move indoors and "overwinter" during the fall and winter months, including stink bugs, Kudzu bugs, lady bugs, pill bugs, boxelder bugs, etc.

Spider Control Kit
4.50 out of 5 stars (10)
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Our top-selling products for spider control, all in one convenient kit. Get rid of spiders with professional spider control products.

Cynoff Insecticide Dust - 1 lb.
5 out of 5 stars (2)
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Cynoff Insecticide is now available in a dust formulation! Contains Zeta Cypermethrin which is 4x more powerful than regular Cypermethrin. Quick Kill and long residual!

Overwintering Kit for Stink Bugs, Lady Bugs, Boxelder Bugs
5 out of 5 stars (4)
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Control stink bugs, lady bugs, boxelder bugs and more with professional insect control products that provide a quick kill and long residual.

Cyper WSP
5 out of 5 stars (1)
Free Shipping!
A Crack and Crevice and/or Spot Treatment for Residual and Contact Control

Martins Viper Insecticide Concentrate
5 out of 5 stars (12)
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Viper Insecticide provides fast knockdown and residual control of roaches, bees, ants, spiders, scorpions, flies, fleas and ticks, chiggers and other listed pests.

Hi-Yield Pest Control Concentrate
5 out of 5 stars (1)
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Proven indoor and home perimeter insect control that kills on contact and provides residual control.

Over n Out! Advanced Fire Ant Killer
5 out of 5 stars (1)
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Over n Out! Advanced Fire Ant Killer is a great way of keeping your backyard clear of any fire ants.

Equi-Sense Trigger Horse Spray
Not yet Rated
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Trigger is a 1.0% Cypermethrin horse spray that protects against biting and nuisance Flies, Gnats, Mosquitoes (Culex spp.) and stays active for up to 14 days. Trigger Horse Spray is now SWEAT and WEATHER RESISTANT!

Amdro Quick Kill Lawn & Landscape Insect Killer Concentrate
Not yet Rated
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Amdro Quick Kill Lawn & Landscape Insect Killer Concentrate is ideal for yard and garden use.

Amdro Quick Kill Fire Ant Mound Drench Ready-To-Spray
Not yet Rated
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Amdro Quick Kill Fire Ant Mound Drench is easy to use and will destroy entire ant mounds in just minutes.

Amdro Quick Kill Lawn & Landscape Ready-To-Spray
Not yet Rated
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Amdro Quick Kill Lawn & Landscape Ready-To-Spray controls over 200 insects.

FMC Triple Crown T&O Insecticide
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A perfect 3 in 1 solution for controlling and eliminating pests that can permanently harm and damage turf and ornamental plants.


Cypermethrin begins working on contact for a faster kill.

Cypermethrin begins working immediately upon contact or ingestion, leading to insect knock-down and death. Cypermethrin kills by acting as a high-power poison to the central nervous system. Once poisoned, the insect’s nerve cells become excited, causing paralysis and preventing normal feeding and grooming activities. Absence of these activities leads to the insect’s eventual or immediate death.

Cypermethrin Toxicity

  • Cypermethrin has low toxicity to humans, mammals and birds.
  • Handlers of cypermethrin products should always read the product label and wear protective clothing as indicated.

For More Information

For more information in regards to pest control or pest control equipment, please feel free to contact a representative.

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We sell professional do it yourself pest control (diy), exterminator and
extermination insecticide, pesticide, chemical and bug killer treatment
products to spray, eliminate and exterminate pests.

Many of our products are not available in stores
such as Home Depot, Walmart or Lowes.